Reversing device for shafts.



No. 848,931- PATENTED APR. 2; 1907.

A. SUNDBERG & G. BRIGSSONL. RBVERSING DEVICE FOR SHAFTS.

APPIQIOATION FILED OUT. 10. 1906.

UNTTE STTES PATENT EETGE.

REVERSING DEViCE FOR SHAF TS.

Specification of Letters Patent.

Patented April 2, 1907.

Application filed October 10, 1906. Serial No. 338,282.

To (tZZ 1072,0117, it may concern:

Be it known that we, AUGUST SUNDBERG and GUSTAF Enrossox, of Stockholm, Sweden, and subjects of the King of Sweden, have invented certain new and useful Improvements in Reversing Devices for Shafts; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

The invention relates to mechanism for operating shafting, and consists in means for driving the motor-shaft and propeller-shaft in the same direction and at the same speed, means for maintaining the propeller-shaft stationary while the motor-shaft remains in motion, and means for reversing the direction of movement of the propeller-shaft to that of the motor-shaft.

In the accompanying drawings, forming part of the specification, Figure 1 is a vertical transverse section of the device, the operat- 'ingcranks and connecting-rods being shown diagrammatically, the full lines designating the motor-shaft connections and the dotted lines designating the propeller-shaft connections; and Fig. 2 is a central horizontal section.

Referring to the drawings, a designates the motor-shaft, having a balancewheel a fixed on its inner end, and b the propeller-shaft, mounted in line of the axis of the shaft a and having a disk 76 fixed on its inner end.

A supporting member, such as a drum n, surrounds the balance-wheel and is loosely mounted on the motor-shaft a. This supporting member carries or supports a guiderod 0, which extends across the diameter thereof and having slides Z m, respectively, mounted at each end. The slide Z is connected with the shaft a by means of a rod 1), pivoted to the slide and to an eccentric or crank pin 0, fixed in the hub of said balancewheel. The slide 'm is connected with the same shaft through a rod 8, pivoted to the slide and toan eccentric-pin d, carried on a crank arm or disk g, rigidly secured to the crank-pin c. The propeller-shaft b is connected with slide Z by means of a rod 1", pivoted to the latter and to an eccentric or crank-pin e, fixed on the disk It. This crankpin e has a crank-arm h fixed thereon, which carries a crank-pinf, on which is mounted a rod t, pivotally connected to the slide m.

The drum n has a head a fixed thereon, which surrounds the disk 76 and is provided with a friction clutch-ring B, concentric to the propeller-shaft b. A friction clutchwheel D is mounted to rotate with the shaft 1), but is movable longitudinally thereon into and out of engagement with the ring B by any suitable means and for the purpose now to be described.

When the clutch-wheel D is in engagement with the ring B, as shown in Fig. 2, and the motor-shaft a is being rotated in the direction indicated by the arrow, the crankpin a and crank 9 will, through their respective connectings with the slides Z and m, eX- ert pressure on the guide-rod 0, and thereby rotate the drum n and its head it, which latter being clutched to the propeller-shaft will rotate it in the same direction and at the same speed as the motor-shaft, while the mechanism inside the drum remains stationary relatively to the drum and shafts. Assuming now that the clutch-wheel D is moved out of engagement with the clutchring B, the rotation of the motor-shaft will continue to rotate the drum at one-half the angular speed of the shaft; but the drum not being connected with the propeller-shaft the latter remains stationary. If now the drum be held against rotation by any suitable means, such as a band 0, around the frictionwheel B, the propeller-shaft will be rotated in an opposite direction to that of the motorshaft through the medium of the disk 76, which is connected, as above described, with the balance-wheel a. The reversal of rotation of the shafts is due to the relative positions of the pins 0 and e. The downward movement of pin 0 from the o'sition shown in Fig. 1 will cause the slide to move away from the axes of the shafts, and as the pin 6 is below the axes the shaft 1) will be rotated to the left.

Ve claim 1. The combination with a motor-shaft and a propeller-shaft in line therewith, of reciprocating members, a crank on each shaft and means connecting both cranks with the reciprocating members.

2. The combination with a motor-shaft and a propeller-shaft in line therewith, of conjointly-reciprocating members, cranks on each shaft, and means connecting the cranks with both reciprocating members.

ICC

3. The combination with a motor-shaft and a propeller-shaft in line therewith, of a guide, slides mounted on the latter, cranks on each shaft and means connecting the cranks with the guide.

4. The combination with a motor-shaft and a propeller-shaft in line therewith, of a supporting member, a guide carried by the latter, slides on the guide, a crank on each shaft, and means connecting each crank with the slides.

5. The combination with a motor-shaft and a propeller-shaft, of a rotatable supporting member, a guide carried by the latter, a crank on each shaft, and means connecting the cranks with the guide,

6. The combination with a motor-shaft and a propeller-shaft, of a rotatable supporting member, a guide carried by the latter, a crank on each shaft, rods connected with each crank, means connecting the rods, and means to lock the supporting member to the propeller-shaft.

7. The combination with a motor-shaft and a propeller-shaft, of a supporting mem ber, a guide fixed in the latter, slides on the guide, a crank on each shaft, rods connecting the cranks with the slides, and means to connect the supporting member with the propeller-shaft.

8. The combination with a motor-shaft and a propellershaft, of a supporting member loosely mounted on the shafts, a guide mounted in the supporting member between the ends of the shafts, slides mounted on the guide, a crank carried by each shaft,'rods connecting the cranks and one of the slides, a second crank carried by each shaft connected with the other slide, a clutch-ring carried by the supporting member, and a clutch-wheel on the propeller-shaft-adapted to be moved into and out of engagement with the clutch rin 9 The combination with a motor-shaft, of a slide adapted to be reciprocated thereby, a propeller-shaft, and mechanism operated by the slide to rotate the propeller-shaft in a direction opposite to the direction of rotation of the motor-shaft.

10. The combination with a motor-shaft having a crank mounted thereon, of a slide, a rod connected to the crank andslide,"a propeller-shaft, a crank mounted thereon, and a rod connected to the slide and to the lastnamed crank at a point angularly displaced with relation to the point of connection of the first-named crank and rod, whereby the propeller-shaft is rotated in a direction opposite to the direction of rotation of the motor shaft.

In testimony that we claim the foregoing as our invention we have signed our names in presence of two subscribing witnesses.

AUGUST SUNDBERG. GUSTAF ERICSSON. Witnesses:

CARL FRIBERG, GUsT. ALsoN. 

